Hi,
It should go away after a couple of hours flying. I have never been sick in a light aircraft, but get quite ill flying as a passenger on airliners. (because i'm not in control) but - the best thing in my experiance with others is: If you are in control you don't usually get airsick, I don't know if you were in control on this flight. (You should have been, if you are a student!!!) but most people I know only get sick when they are not flying the plane.......